KR20180034574A - combine - Google Patents

Abstract

The combine according to the present invention comprises a cutting device 3 for taking a non-cut section of a package, a tumbling device 5 for tumbling the cut trench cut by the cutting device 3, a cutting device 3 and a tumbling device 5 And an engine 20 disposed in an engine room 43 on the traveling base 1. The traveling base 1 is provided with a traveling base 1, The cutting device 3 has a feeder house 31 communicating with a feed opening in front of the threshing device 5 and an exhaust gas purifying device 50 for purifying the exhaust gas by the engine 20. The driving operation portion 15 provided in the operation portion 10 is disposed adjacent to the feeder house 31. [ A cavity portion 65a communicating from the engine room 43 toward the feeder house 31 is provided below the operation operating portion 15. A part of the cavity portion 65a is provided above the feeder house 31, .

Description

combine

The present invention relates to a combine for harvesting grains by tramping the cut-troughs by a threshing device while cutting a grain cut in a field by a cutting device.

Conventionally, a combine (working vehicle) as a packaging machine for a packaging machine is provided with a running vehicle equipped with an engine, a pair of left and right running crawlers (running parts) are mounted on the running vehicle, and a pair of left and right running crawlers are driven and controlled Packaging and the like are moved, the base of the uncut cut in the package is cut off by the cutting device, the curved portion is transported to the threshing device by the curved transporting device, the curtain is thrown by the threshing device, .

In the conventional combine, a pre-cleaner for introducing fresh air into the engine is provided above the gas and a tail pipe for exhausting the exhaust gas from the engine is provided below the gas 1). However, when the exhaust device including the tail pipe is installed in the lower part of the vehicle, mud or the like from the package is caught while traveling, which lowers the exhaust resistance, and there is a fear of ignition due to entry of straw crumbs . Therefore, a combine is proposed in which a tail pipe is arranged above a gas like a pre-cleaner (see Patent Document 2).

In recent years, for the purpose of environmental purification, a combine equipped with an exhaust gas purifying apparatus for purifying exhaust gas from an engine has been proposed (see Patent Document 1).

Japanese Patent Application Laid-Open No. 2015-132186 Japanese Patent Application Laid-Open No. 2014-042477

 Further, in order to provide various devices such as a cutting machine and a threshing device, an engine room is formed below a driving part in the right side room of the cutting device and an engine is mounted in the engine room. In recent years, the size of the engine room is often limited due to the demand for compactness and light weight of the combine (in many cases, the engine mounting space is narrow). Various components such as an air cleaner and a radiator are disposed in an engine room having many restrictions in addition to the engine.

On the other hand, when the exhaust gas purifier is provided instead of the silencer provided in the combine in the patent document 2 like the combine in the patent document 1, the exhaust gas purifier is heavier than the silencer, and the capacity becomes larger. Therefore, when the engine equipped with the exhaust gas purifier is installed in the combine, the arrangement of the other components in the engine room is influenced by the arrangement position of the exhaust gas purifier, and the intake path and the exhaust path are elongated .

In addition, when the pre-cleaner and the tail pipe are fixed above the threshing device, since the pre-cleaner and the tail pipe are influenced by the installation position of the grain discharge conveyor (discharge auger) and the grain conveyor, The path and the inspiratory path are elongated. On the other hand, when the exhaust path and the intake path are shortened, the exhaust heat from the engine or the exhaust path may affect the driver's seat. Particularly, when the exhaust gas purifier for performing the regeneration process at high temperature is mounted, like the combine in Patent Document 1, the exhaust heat of the exhaust passage not only has a thermal influence on the intake path and the driving seat, There are also a few thermal effects due to exhaust heat.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and provides a combine which is improved.

The present invention relates to a cutting machine for cutting a cutaway portion of a package, a trolley for tilting the cut-out portion cut in the cutting machine, a traveling airframe for mounting and cutting the cutting machine and the trolley, The combine machine of claim 1, further comprising: a feeder housing that communicates with a feed port of a front portion of the threshing device, Wherein a driving operation portion provided in the operation portion is disposed adjacent to the feeder house and a cavity communicating from the engine room toward the feeder house is installed below the driving operation portion And a part of the cavity portion may be opened above the feeder house. The cutting device is configured to be adjustable in elevation, and the opening portion of the cavity above the feeder house is wide during the cutting operation in the packaging.

Wherein the operation control portion has an operation opening on an upper surface thereof and has an L-shaped partition plate as viewed from a side covering the upper portion and the front portion of the cavity portion, The partition plate is protruded toward the feeder house and the heat insulating material is attached to the surface covering the cavity.

In the combine, the exhaust gas inlet side of the exhaust gas purifier may be disposed so as to protrude from the driving operation portion toward the feeder house, and the front face and the upper face of the exhaust gas purifier may be covered with the partition plate.

Wherein the partition plate includes a bottom plate that covers the upper portion of the cavity portion and a back plate that covers the front of the cavity portion, the bottom plate runs downward toward the cutting device, and at the same time, As shown in FIG.

An exhaust gas purifying device support bracket having one end connected to a cylinder head of the engine and supporting the exhaust gas purifying device; and an exhaust gas purifying device connected to the exhaust gas purifying device support bracket, And the exhaust pipe support bracket for supporting the exhaust pipe of the purifier may be disposed in parallel with the rear plate of the partition plate interposed between the exhaust gas purifier and the exhaust pipe support bracket.

In the combine, an air cleaner and an attenuator, which are supported by the engine room frame, are provided in an intake path of the engine, the attenuator is disposed below the air cleaner and disposed behind the exhaust gas purifying device, And a support bracket may be disposed between the attenuator and the exhaust gas purifying device.

The present invention also provides a cutting machine comprising a cutting device for taking an uncut cutting edge of a package, a trolley for tilting the cutaway cut in the cutting device, a grain tank for storing the curl tangled in the trolley, , A traveling gas for mounting the grain tank, and an engine for allowing the engine to be installed in the engine room on the traveling gas, wherein the intake path and the exhaust path of the engine are disposed between the grain tank and the threshing device, A pre-cleaner serving as a fresh air introducing portion of the intake path, and a tail pipe serving as an exhaust gas exhausting portion of the exhaust path are provided above the gas, and the intake path is disposed closer to the driving seat than the exhaust path, The intake pipes are disposed at positions close to the exhaust passage. As a result, since the intake path is disposed between the driver's seat and the exhaust path, the intake path can function as a heat shielding member for blocking the exhaust heat from the exhaust path behind the driver's seat. Therefore, it is possible to prevent the heat from the exhaust path of the tail pipe or the like from being transmitted to the operator who climbs the driver's seat. In addition, since the intake tubes close to the exhaust passage are made of the metal pipe, the deformation due to the heat influence from the exhaust passage can be suppressed and the rigidity of the intake passage can be ensured.

In the combine, an engine room frame constituting an engine room enclosing the engine is installed upright from the running vehicle, and a driving section having the driver's seat is provided above the engine room. The tail pipe may be connected to the engine room frame behind the operation portion. As a result, the support structure can be simplified by intensively supporting the intake tube and the tail pipe in the engine room frame, and the assembly and maintenance of the intake and exhaust passage of the engine can be improved.

The combine has an exhaust gas purifier for purifying the exhaust gas from the engine. An exhaust outlet of the exhaust gas pipe of the exhaust gas purifier is inserted into an exhaust inlet of the tail pipe extending to the inside of the engine room, And the exhaust pipe and the exhaust gas purifier are supported by the engine via the first support bracket while the tail pipe is supported by the engine room frame via the second support bracket. That is, each of the exhaust outlet pipe and the tail pipe connected and disconnected can be supported by the engine and the traveling vehicle, which are the same vibration system as the exhaust outlet pipe and the tail pipe, respectively. Therefore, the exhaust outlet pipe and the tail pipe are not influenced by other vibration systems, so that breakage or failure can be prevented. Further, since the tail pipe can be separated from the vibration system of the engine, it is possible to remarkably suppress the possibility of damaging the tail pipe due to the difference in vibration frequency between the diesel engine side and the traveling gas side.

Wherein the tail pipe is constituted by a double pipe formed by an inner pipe and an outer pipe, the exhaust pipe is inserted into the inner pipe, the second support bracket is connected to the inner pipe and the outer pipe, It may be connected. The inner tube and the outer tube of the tail pipe are respectively fixed to the outer tube by the second supporting bracket so that the outer tube can be supported while maintaining the relative position of the inner tube.

In the combine, the second supporting bracket is formed in an L shape having a first connecting portion extending vertically and a second connecting portion extending forward from a lower end of the first connecting member, One end of the outer tube is connected to the upper end of the first connection part, the first connection part is connected to the engine room frame, and the inner tube is connected to the front end of the second connection part. The tail pipe can be fixed in the engine room so that the exhaust inlet can be extended, and the high temperature exhaust gas exhausted from the exhaust outlet pipe can be sufficiently cooled by the tail pipe and exhausted to the outside have.

In the combine, the intake pipe is connected to the engine room frame via a third support bracket and extends in the vertical direction from the side of the tail pipe, and the third support bracket is connected to the intake pipe And may be arranged in front of the connecting portion with the engine room frame. Since the connecting portion of the third supporting bracket with the intake pipe is arranged in front of the connecting portion with the engine room frame, a suitable gap can be formed between the intake pipe and the exhaust pipe, It is possible to easily mitigate the thermal influence of the heat.

(Effects of the Invention)

According to the present invention, a part of the engine room and the lower side of the driving control part are covered with a partition plate. Therefore, not only the thermal influence of the exhaust gas purifying device or the engine serving as the heating element to the operation portion is suppressed, but also the cooling air flowing in the engine room is guided to the opening portion on the side of the feeder house, It is possible to prevent the stagnation of the air and improve the cooling effect in the engine room.

According to the present invention, the exhaust gas purifier is disposed so as to protrude from the left side of the operation panel toward the feeder house, and the exhaust gas purifier is covered by the partition plate. Therefore, it is possible not only to prevent the air heated by the exhaust heat from the engine and the exhaust gas purifying device from flowing into the operation portion, but also to prevent the high temperature components such as the exhaust gas purifying device, can do.

According to the present invention, since the outlet pipe support bracket is configured to be wide in the left and right direction (same direction as the output shaft of the engine) of the back plate of the partition plate body, the cooling air passing through the engine room is guided to the feeder house side, The stay of the cooling air in the engine room can be suppressed. Further, since the outlet pipe support bracket is disposed between the exhaust gas purifier and the damper, the attenuator is less likely to receive radiated heat from the exhaust gas purifier.

1 is a left side view of an ordinary type combine of the present invention.
2 is a right side view of the same combine.
3 is a plan view of the combined combine.
4 is a front sectional view of the combined combine.
5 is a left side view of the operation section.
6 is a perspective view of the operation section viewed from the left front side.
7 is a perspective view of the operation section viewed from the right rear side.
8 is a perspective view showing the frame structure on the traveling vehicle of the combine.
9 is a rear perspective view showing the relationship between the engine room frame and the engine.
10 is a perspective view from the left front side showing the frame configuration around the operation part.
11 is a perspective view from the left rear view showing the frame configuration around the operation portion.
12 is a perspective view from the right front side showing the configuration of the operation section.
13 is a front sectional view of the operation part.
Fig. 14 is an enlarged perspective view of the operation section viewed from the left front. Fig.
Fig. 15 is an enlarged perspective view showing the frame structure of the side column as seen from the left front. Fig.
Fig. 16 is a perspective view of the diesel engine viewed diagonally right from the front. Fig.
17 is a perspective view of the diesel engine viewed from the obliquely left side of the rear.
18 is a right side view of the diesel engine.
19 is a left side view of the diesel engine.
20 is a plan view of the diesel engine.
21 is a perspective view of the engine room viewed from the left front.
22 is a perspective view showing a tail pipe support structure.
23 is an exploded perspective view showing the supporting structure of the intake system and the exhaust system.
24 is a left side view of an ordinary type combine according to another embodiment of the present invention.
25 is a right side view of the same combine.
26 is a plan view of the combine combine.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a combine according to the present invention will be described with reference to the drawings. In the following description, the left side toward the advancing direction of the traveling base 1 is referred to as the left side, and the right side toward the advancing direction is referred to as the right side only. The combine of the embodiment will be described with reference to Figs. As shown in Figs. 1 to 7, includes a traveling base 1 supported by a pair of left and right traveling crawlers 2 (traveling units). A cutting device 3 for cutting and collecting the curved portions is mounted on the front portion of the traveling base 1 so as to be adjustable around the cutting pivot point shaft 4a by a single acting type hydraulic cylinder 4 for elevation. The traveling base 1 is provided with a tumbling device 5 having a tilting 51 and a graining tank 7 for storing curved grains after the tumbling is arranged in a transverse arrangement. The threshing device 5 is disposed on the left side in the advancing direction of the traveling base 1 and the grain tank 7 is disposed on the right side in the advancing direction of the traveling base 1. [

And a longitudinal conveying conveyor 8 for conveying the grain in the grain tank 7 from the rear to the top of the grain tank 7 to the outside of the base. The grain discharge conveyor 9 connected to the successive transfer section 8a above the longitudinal transfer conveyor 8 is configured to be able to rotate the grain outlet 9a at the front end to the side of the gas. The grain discharging conveyor 9 conveys the grain in the horizontal direction toward the grain outlet 9a when it receives the grain from the succession conveying section 8a upwardly conveyed by the longitudinal conveying conveyor 8 at the rear of the grain tank 7 Thereby discharging the grains to a container or truck outside the vessel. An auger stand 125 is installed upright on the upper surface of the threshing device 5. The grain discharging conveyor 9 is supported at a storage position above the traveling base 1 through an auger stand 125. [ The grain discharge conveyor 9 is supported by the auger stand 125 in a substantially horizontal posture.

The operation section 10 is provided in front of the grain tank 7 and on the right front side of the traveling base 1. The operation section 10 is provided with a step 10a on which the operator rides, a driver's seat 10b, a steering column 11 on which the steering wheel 10c is installed, a peripheral lever 12, A side column 15 provided with an operating mechanism such as a work clutch lever 14a or 14b or a switch or the like, an operating tool case 17 provided with an operating tool such as a lever switch 16, And an electric field box 18 in which an electric field is built. In this embodiment, as the work clutch levers 14a and 14b, a machining clutch lever and a descending clutch lever for connecting / disconnecting power transmission to each of the cutting device 3 and the threshing device 5 are illustrated, and a lever switch 16 as a conveyor position operation lever for operating the grain discharge conveyor 9.

The handle column 11 is disposed in front of the driving seat 10b and the side column 15 is disposed in the left side room of the driving seat 10b and the handle column 11 and side The column 15 is provided standing up from the traveling base 1 in an L-shape when viewed in plan. The operation box case 17 is disposed behind the side column 15 and the electric box 18 is disposed behind the driving seat 10b and the operation box case 17 and the electric box 18, And the operation box case 17 and the electric component box 18 cover the rear of the operation unit 10. The operation unit case 17 and the electric component box 18 are disposed above the backrest of the operation seat 10b.

On the lower side of the driving seat 10b in the traveling base 1, a diesel engine 20 as a power source for each driving portion is disposed. Further, left and right track frames 21 are disposed on the lower surface side of the traveling base 1. The track frame 21 is provided with a driving sprocket 22 for transmitting the power of the engine 20 to the traveling crawler 2, a tension roller 23 for holding the tension of the traveling crawler 2, A plurality of track rollers 24 for holding the ground side of the track roller 24 in a grounded state are provided. The front side of the traveling crawler 2 is supported by the drive sprocket 22 and the rear side of the traveling crawler 2 is supported by the tension roller 23 and the rear side of the traveling crawler 2 is supported by the track roller 24, Lt; / RTI >

The cutting device 3 has a feeder house 31 communicating with the feed 5a in front of the threshing device 5 and a horizontally elongated bucket shaped grain header 32 connected to the front end of the feeder house 31 do. And rotatably supports the rake auger 33 (platform auger) in the grain header 32. A laying reel 34 to which a tine bar is attached is disposed above the front portion of the laying auger 33. [ And a cutting blade 35 having a barricade shape is arranged in front of the grain header 32. [ The left and right sieve bodies 36 are protruded on the left and right sides of the front portion of the grain header 32. In addition, the feed conveyor 37 is installed in the feeder house 31. The lower surface of the feeder house 31 and the front end portion of the traveling base 1 are connected to each other through the lifting hydraulic cylinder 4 and the cutting axis 4a (feeder house conveyor axis as a cutting input shaft) , The cutting device 3 is moved up and down by the lifting hydraulic cylinder 4 as shown in Fig.

With the above arrangement, the end of the uncut portion between the left and right feces 36 is scratched by the rake reel 34, the straw side of the uncut portion is cut off by the cutter 35, Is collected near the entrance of the feeder house 31 near the center of the width of the left and right widths of the grain header 32. The entire amount of the cutting edge of the grain header 32 is conveyed by the feed conveyor 37 and is inputted into the feed port 5a of the threshing device 5. [

In addition, the grain header 32 is adjustably connected to the front of the feeder house 31 through the right and left tilt adjustment point shaft 38 in a rightward and leftwardly inclined manner. And a right and left tilt adjustment hydraulic cylinder 39 for rotating the grain header 32 around the left and right tilt adjustment point shaft 38. The right and left tilt angles of the grain header 32 are adjusted in the rolling cylinder 39 Thereby supporting the grain head 32, the cutting edge 35, and the laying reel 34 horizontally with respect to the packaging surface.

In addition, a swing (51) is rotatably installed in the supply chamber of the threshing device (5). And the swing shaft 51 is axially supported on the swing shaft 52 extending in the front-rear direction of the traveling base 1. On the lower side of the swivel 51, a supporting net 54 for depressing the curved grains is stretched. In addition, on the outer circumferential surface of the front portion of the flywheel (51), a helical wedge-shaped take-up vane protrudes radially outward. According to the above configuration, the cut-away groove inserted from the supply opening 5a is transported toward the rear of the traveling base 1 by the rotation of the swing 51 and is kneaded and thrown between the swing 51 and the backing mesh 54 or the like. The debris, such as a grain or the like smaller than the mesh of the backing net 54, falls from the backing net 54. Straw straw or the like that is not poured from the support net 54 is discharged to the package from the discharge port of the rear portion of the threshing device 5 by the conveying action of the raking 51.

In addition, a plurality of feeding valves (not shown) for pivotally attaching the feeding valve 51 to adjust the feeding speed of the toned material in the feeding chamber are pivotally mounted on the upper side of the feeding roller 51. By adjusting the angle of the feeding valve, the feeding speed (staying time) of the threshing product in the feeding chamber can be adjusted according to the type and characteristics of the cut-off gaps. On the other hand, the grazing material discriminating device 55 disposed below the threshing device 5 is provided with a swinging discriminating board 56 for discriminating gravity which has a grain pan, a chaff sheave, a grain sheave, a straw rack and the like.

Further, the curvilinear separating mechanism 55 is provided with a tug fan 57 for supplying a sorting air to the swinging-discriminating unit 56, and the like. The degummed material that has been thrown from the tumbling 51 and tumbled from the supporting net 54 is subjected to gravity sorting operation of the shaking sorting tumbler 56 and wind sorting operation of the tumbling fan 57, And a mixture of straw (a second piece such as a piece of perforated scraper), and straw crumbs.

A first conveyor mechanism 58 and a second conveyor mechanism 59 are provided as a curvilinear separating mechanism 55 on the lower side of the oscillating screening unit 56. The grain 1 dropped in from the swing selection unit 56 is sorted by the oscillating screening unit 56 and the tongue fan 57 by the conveyor mechanism 58 and the grain conveyor 60, ). The mixture of the grains and the straw (second piece) is returned to the threshing front end side of the swash plate 51 through the No. 2 conveyor mechanism 59 and the No. 2 reducing conveyor 61, and re- Straw crumbs and the like are discharged to the package from the discharge port of the rear portion of the traveling base 1.

Next, the mounting structure of the diesel engine 20 will be described with reference to Figs. 7 to 13. Fig. The diesel engine 20 is subjected to vibration-damping support via the engine bed 41 on the lower side of the driving seat 10b of the running vehicle 1. [ The drive force of the diesel engine 20 is transmitted to each part of the drive case 42 and the threshing device 5 in the front part of the track frame 21 via the pulley and belt drive system. The front surface side and the upper surface side of the diesel engine 20 are covered with the engine room cover 44. A partition plate member 65 as an insulating plate is provided below the side column 15 and covers a part of the upper surface side of the diesel engine 20 by a partition plate member 65. The front surface side of the engine room 43 is formed by the engine room cover 44 and the upper surface side of the engine room 43 is formed by the engine room cover 44 and the partition plate body 65.

A box-shaped wind tunnel case 46 is installed upright on the right end of the operation section 10 of the running vehicle 1 through an opening / closing point shaft. A water-cooling radiator 47 is installed upright on the inside of the casing of the wind tunnel case 46 on the upper surface side of the traveling base 1 so as to replace the radiator 47 with the cooling fan 48 of the diesel engine 20. [ (Cooling wind) is received into the wind tunnel case 46 from the outer side opening on the right side of the wind tunnel case 46 and the outside air is guided from the gas inside opening on the left side of the wind tunnel case 46 through the radiator 47 The cooling wind of the vibration deadening completion is sent to the engine room 43 by the rotation and the diesel engine 20 or the like is cooled by the cooling wind of the vibration deadening completion.

In addition, the wind tunnel case 46 is provided on the right side surface of the wind tunnel casing 46 with a wind wave network at the outer side opening. Thereby preventing intrusion of straw crumbs into the inside of the wind tunnel case 46 and further into the engine room 43 by the presence of the corrugation net. A shroud 481 is fixed to cover the entire ventilation range of the radiator 47 and the cooling fan 48 is disposed in the opening formed in the shroud 481. That is, a cooling fan 48 is disposed on the left side of the radiator 47, and a fan shroud 481 is disposed between the cooling fan 48 and the radiator 47 to guide the cooling air.

A pair of left and right supporting frames 71 constituting the engine room frame are installed upright on the rear side of the operation unit 10 on the upper surface of the traveling base 1 and a rear plate member 72 ). That is, the engine room 43 is formed (partitioned) by the partition plate body 65, the engine room cover 44, the wind tunnel case 46 and the rear plate body 72. The diesel engine 20 is disposed in the engine room 43 with the output shaft 20a (crankshaft) of the diesel engine 20 facing left and right. A left end portion of the output shaft 20a is projected to the left side of the diesel engine 20 and a driving drive belt and a threshing drive belt are connected to the left end portion (projecting end portion) of the output shaft 20a. The driving force of the diesel engine 20 is output from the output shaft 20a to the traveling crawler 2 through the driving driving belt and the driving force of the diesel engine 20 is transmitted from the output shaft 20a to the threshing device 5 ).

The engine room cover 44 has a front portion 441 extending upward from the rear edge of the step 10a and a top portion 442 extending rearward from the top of the front portion 441, And is formed in an L shape. The driving seat 10b is mounted on the upper surface portion 442 of the engine room cover 44 via a seat supporting mechanism. The engine room cover 44 has a space in its inside by a double structure and its left side is connected to the wind tunnel case 46 so that the space in the engine room cover 44 communicates with the space in the wind tunnel case 46. The front portion 441 and the top portion 442 of the engine room cover 44 are each provided with openings 443 for air introduction.

Air is introduced from the outside air into the engine room cover 44 through the opening 443 and flows into the wind tunnel case 46 through the upper surface portion 442 of the engine room cover 44 under the operating seat 10b . Therefore, the air flows into the engine room cover 44 to exert an adiabatic effect between the operation section 10 and the engine room 43, and the operation by the exhaust heat from the engine 20 and the exhaust gas purification apparatus 50 It is possible to suppress the thermal influence on the portion 10. The air from the engine compartment cover 44 in the wind tunnel case 46 joins with the air received in the wind tunnel case 46 and flows into the engine compartment 43 to be supplied to the feeder house 31 in the engine room 43. Thus, the inside of the engine room 43 is allowed to pass air from the wind tunnel case 46 toward the feeder house 31 to serve as cooling air in the engine room 43.

As shown in Figs. 9 to 15, the side column 15, which is a part of the driving control unit, is fixed to the left chamber of the engine room cover 44 and is disposed on the side of the driving seat 10b. One end of the column supporting beam frame 66 supporting the side column 15 is connected to the middle portion of the left supporting frame 71. The side column 15 has an L shape as viewed from a side having a hollow portion 65a cut out in the rear lower side and a part of the exhaust gas purifier 50 provided above the engine in the hollow portion 65a Respectively. A part of the hollow portion 65a of the side column 15 is opened above the feeder house 31 of the cutting device 3.

As described above, the cutting device 3 is configured so as to be capable of elevating and lowering, and a part of the cavity portion 65a is largely opened above the feeder house 31 during the cutting work in packaging and the like. That is, when the cutting device 3 is lowered around the cutting axis 4a by the lifting hydraulic cylinder 4 and the grain header 32 is placed at the curled cutting position, the bottom plate of the partition plate body 65 The upper surface of the feeder house 31 is located at a position spaced apart from the upper surface 65b. The opening portion 443 between the partition plate body 65 and the feeder house 31 is widened and the cooling air flowing in the engine room 43 is liable to be discharged so that the engine room 43 The heat dissipation effect is improved.

The side column 15 is provided with an operation lever 12, 13, 14a, 14b, an operation switch such as an operation switch on the upper surface thereof and an L-shaped partition plate And the plate body 65 is provided below the column supporting beam frame 66. The side column 15 has a structure that covers the partition plate body 65 and the front side by the side column cover 67. The operation levers 12, 13, 14a, 14b And a link mechanism is provided. The partition plate body 65 is constituted as a heat insulating plate body which protrudes toward the feeder house 31 side of the cutting device 3 and in which a heat insulating material is pasted on a surface covering the cavity portion 65a.

A cavity portion 65a is formed in the lower side of the side column 15 of the operation section 10 to serve as a left and right tunnel shaped space and a part of the exhaust gas purification apparatus 50 provided on the upper surface of the engine 20, (65a). The exhaust gas purifying device 50 in the engine room 43 can be visually confirmed from the upper surface side of the feeder house 31 of the cutting device 3. [ A partition plate body 65 having a heat insulating sheet on the upper surface and the front surface of the cavity 65a is provided. The cooling fan 48 is disposed on the side of the engine room 43 opposite to the mounting portion of the feeder house 31 so that the cooling wind of the cooling fan 48 is discharged from the engine room 43 to the upper surface side of the feeder house 31 , And a cavity portion 65a which is a left-right tunnel-shaped space is formed.

The exhaust gas purifying apparatus 50 is disposed on the engine 20 so that its longitudinal direction is along the left-right direction with the exhaust gas inlet side on the left side (the feeder house 31 side). The engine room cover 44 and the partition plate body 65 are arranged horizontally and disposed above the engine compartment 43 so that the front face and the upper face of the exhaust gas purifier 50 cover the engine room cover 44 and the partition plate body 65, . The exhaust gas outlet side (right side) of the exhaust gas purifier 50 is covered by the engine room cover 44 and the exhaust gas inlet side (left side) of the exhaust gas purifier 50 is covered with the partition plate body 65. [ . Therefore, not only the thermal influence of the exhaust gas purifier 50 as a heating element to the operation portion 10 is suppressed but also the cooling air flowing in the engine room 43 is guided to the opening portion on the side of the feeder house 31 So that the stagnation of the exhaust heat air in the engine room 43 can be prevented and the cooling effect in the engine room 43 can be improved.

The exhaust gas inlet side of the exhaust gas purifier 50 is disposed so as to protrude from the left side surface of the side column 15 toward the feeder house 31 of the cutting device 3. Since the projecting portion of the exhaust gas purifier 50 from the side column 15 is covered by the partition plate body 65 protruding from the left side surface of the side column 15, It is possible not only to prevent the air heated by the exhaust heat by the purifier 50 from being returned to the operation portion 10 but also to prevent the contact with the high temperature components such as the exhaust gas purifier 50, Can be prevented.

The partition plate body 65 has a bottom plate 65b covering the cavity 65a and a back plate 65c covering the front of the cavity 65a and the bottom plate 65b is fixed to the feeder house 31 And is arranged so as to skew upward toward the rear side. The step 10a of the operation section 10 is provided on the operation section support frame 70 installed upright from the traveling base 1. [ One end (rear end) of the column support beam frame 66 is connected to the left support frame 71 and the other end (front end) thereof is connected to the operation support frame 70 via the column support column frame 68. In addition, the intermediate portion of the column supporting beam frame 66 is connected to the mission case 42 through the transmission connection frame 69.

10 and 11, the electric component box 18 is fixed at a position where the bottom surface is supported at the upper portion of the pair of right and left support frames 71, which is a part of the engine room frame, and is located rearward of the engine room cover 44. [ And an air cleaner 49 supported by the pillar frame 71 is disposed below the electrical component box 18. Each of the pair of right and left support frames 71 cantilevers the beam frames 71a and 71b extending in the middle in the left and right direction and connects the beam frames 71a and 71b. That is, the beam frames 71a and 71b of the pair of left and right stanchions 71 are configured as beams between the supporting frames 71, and one of the beam frames 71a and 71b (in this embodiment, the right beam frames 71b ) Is supported by the air cleaner 49.

The electric field box 18 is disposed above the air cleaner 49 installed in the rear of the engine room 43 so that it is not directly affected by the exhaust heat from the engine 20 and the exhaust gas purifier 50. [ That is, since the air cleaner 49 is disposed between the electrical component box 18 and the engine 20, the electrical component box 18 is prevented from being heated by the exhaust heat in the engine room 43, Each electronic component is protected.

The operation tool case 17 which is a part of the driving operation portion is disposed adjacent to the left side (the threshing device 5 side) of the electric component box 18. [ The electrical component box 18 and the operator's case 17 disposed adjacent to each other are connected to each other. The manipulator case 17 is connected to the upper end of the left strut frame 71 and the right side of the threshing device 5 and is disposed at a position behind the side column 15. [ And a front support frame 127 connecting the front side of the right side surface of the threshing device 5 and the left side support frame 71. The front support frame 127 has a connection portion with the threshing device 5, 17 are connected to the left lower end of the room.

9 to 11, in the engine room 43, the diesel engine 20 is arranged so as to follow the engine output shaft 20a in the left-right direction, As shown in Fig. As shown in Figs. 11 to 20, the intake manifold 19 is disposed on one side (rear side) of the cylinder head 91 of the diesel engine 20. The cylinder head 91 is placed on a cylinder block 92 incorporating an output shaft 20a and a piston (not shown). An exhaust manifold 83 is disposed on the other side (front side) of the cylinder head 91. That is, in the diesel engine 20, the intake manifold 19 and the exhaust manifold 83 are distributed and arranged on both side portions with the output shaft 20a therebetween. And the output shaft 20a is projected from the left and right sides of the cylinder block 92 in left and right outward directions.

And the flywheel housing 93 is fixed to the left side surface of the cylinder block 92. A flywheel (94) is installed in the flywheel housing (93). So that the driving force of the diesel engine 20 is drawn out from the left end side of the output shaft 20a, which supports the flywheel 94, toward the mission case 42. [ An oil pan 95 is disposed on the lower surface of the cylinder block 92. A radiator 47 is provided so as to face the cooling fan 48 with the cooling fan 48 disposed on the right side of the cylinder block 92 (see FIGS. 8 and 9).

That is, the cooling fan 48 is disposed on one side of the diesel engine 20 that intersects with the output shaft 20a (on the right side of the cylinder block 92), and the cooling fan 48 is disposed on the opposite side to the one side crossing the output shaft 20a And the flywheel 94 is disposed on the other side (the left side of the cylinder block 92). The exhaust gas purifying device 50 has an exhaust gas inlet side (exhaust inlet side) near the flywheel 94 and an exhaust gas purifier 50 exhaust gas outlet side (exhaust outlet side) near the cooling fan 48 .

With this configuration, the cooling wind from the cooling fan 48 comes into contact with the exhaust gas drawing side (exhaust outlet side) through which the exhaust gas after purification treatment passes in the exhaust gas purifier 50, and the exhaust gas temperature . In the exhaust gas purifying device 50, the exhaust gas introduction side (exhaust inlet side) through which the exhaust gas passes before the purification treatment is distant from the cooling fan 48 so that the cooling air is hard to reach. Therefore, the exhaust gas before the purification treatment can be kept at a high temperature, and the purification performance of the exhaust gas purification device 50 can be appropriately maintained. Further, the temperature of the exhaust gas after the purification treatment can be lowered to be discharged to the outside, and for example, ignition of straw crumbs or the like in packaging can be prevented.

The intake manifold 19 is provided with an exhaust gas recirculation device (EGR device) 96 for receiving recirculation exhaust gas. The air cleaner 49 is connected to the intake manifold 19 via a compressor case 107 and an exhaust gas recirculation device 96 of the turbo supercharger 105 described later. Fresh air (outside air) sucked into the air cleaner 49 and damped and purified is sent to the intake manifold 19 through the compressor case 107 and the exhaust gas recirculation device 96 of the turbocharger 105, Is supplied to each cylinder of the engine (20).

A part of the exhaust gas discharged from the diesel engine 20 to the exhaust manifold 83 is supplied to the respective cylinders of the diesel engine 20 through the exhaust gas recirculation device 96 and the intake manifold 19. [ Is refluxed. As a result, the combustion temperature of the diesel engine 20 is lowered, the amount of nitrogen oxide (NOx) discharged from the diesel engine 20 is reduced, and the fuel economy of the diesel engine 20 is improved.

The common rail 99 is connected to a fuel pump 98 connected to a fuel tank (not shown) in each injector 97 of the diesel engine 20. [ The common rail 99 and the fuel filter 100 are disposed on the intake manifold 19 side of the cylinder head 91 and the fuel pump 100 is disposed on the lower side of the intake manifold 19 in the cylinder block 92 98 are disposed. Each of the injectors 97 has an electromagnetic opening / closing control type fuel injection valve (not shown). The common rail 99 is connected to the discharge side of the fuel pump 98 and each injector 97 of the diesel engine 20 is connected to the cylindrical common rail 99. The high-pressure fuel is temporarily stored in the common rail 99 and supplied to each cylinder (cylinder) of the diesel engine 20 via the common rail 99.

In the above configuration, the fuel of the diesel engine 20 is pressure-fed to the common rail 99 by the fuel pump 98, and is accumulated in the common rail 99 as high-pressure fuel. The high-pressure fuel in the common rail 99 is injected into each cylinder of the diesel engine 20 by opening and closing the fuel injection valves of the respective injectors 97, respectively. That is, the injection pressure, the injection timing, and the injection period (injection amount) of the fuel are controlled with high precision by electronically controlling the fuel injection valves of the respective injectors 97. Therefore, nitrogen oxide (NOx) discharged from the diesel engine 20 can be reduced.

A turbocharger 105 is disposed on the front side of the cylinder head 91 and above the exhaust manifold 83. The turbocharger 105 includes a turbine case 106 with a turbine wheel built therein and a compressor case 107 with a built-in blower wheel. And the exhaust gas introduction side of the turbine case 106 is connected to the exhaust manifold 83. The exhaust inlet pipe 81 of the exhaust gas purifier 50 is connected to the exhaust gas withdrawing side of the turbine case 106. That is, the exhaust gas discharged from each cylinder of the diesel engine 20 to the exhaust manifold 83 is discharged to the outside of the gas via the turbocharger 105, the exhaust gas purifier 50, and the like.

The air supply inlet side of the compressor case 107 is connected to the air supply draw-out side of the air cleaner 49 via the air supply duct 108. The intake and exhaust side of the compressor case 107 is connected to the intake manifold 19 via a supercharging pipe and an exhaust gas recirculation device 96. That is, fresh air, which has been dusted and cleaned by the air cleaner 49, is sent from the compressor case 107 to the exhaust gas recirculation device 96 through the supercharging pipe, and then supplied to each cylinder of the diesel engine 20 .

(Diesel particulate filter (DPF)) 50 for removing particulate matter in the exhaust gas of the diesel engine 20 in order to purify the exhaust gas discharged from each cylinder of the diesel engine 20 do. The exhaust gas purifying device 50 is provided with an oxidation catalyst 111 and a soot filter 112. The exhaust gas discharged from each cylinder of the diesel engine 20 to the exhaust manifold 83 is discharged to the outside of the gas via the exhaust gas purifying device 50 and the like. The carbon monoxide (CO), the hydrocarbon (HC), the particulate matter PM and the nitrogen oxide material (NOx) in the exhaust gas of the diesel engine 20 are reduced by the exhaust gas purifying device 50.

The exhaust gas purifying device 50 is formed as a longitudinal long cylindrical shape extending in a direction parallel to the output shaft 20a (crankshaft) of the diesel engine 20 when seen in plan view. The exhaust gas purifier 50 is provided with an exhaust inlet pipe 81 for receiving the exhaust gas at a portion near the flywheel 94 and is provided at a portion near the cooling fan 48 in the exhaust gas purifier 50 And an exhaust outlet pipe 82 for exhausting the exhaust gas after the purification treatment is provided. The left and right side surfaces of the cylinder head 91 are detachably supported via the left support leg body 113 and the right support leg body 114 with the other end side of the exhaust gas purifier 50 . That is, the exhaust gas purifier 50 is attached to the upper surface side of the diesel engine 20 via the left support leg body 113 and the right support leg body 114. The exhaust gas purifying device 50 is positioned above the exhaust manifold 83 in the longitudinal direction of the cylindrical exhaust gas purifying device 50 in the left and right direction of the diesel engine 20. [

The exhaust gas introduction side (exhaust inlet side) of the exhaust gas purifier 50 is positioned on the lower side of the partition plate body 65 and the exhaust gas purifier 50 is disposed on the lower side of the engine room cover 44 as shown in Figs. The exhaust gas withdrawing side (exhaust outlet side) of the exhaust gas purifying device 50 is positioned. An exhaust inlet pipe 81 is provided on the exhaust gas introduction side of the exhaust gas purifier 50 and an exhaust outlet pipe 82 is provided on the exhaust gas withdrawing side of the exhaust gas purifier 50. The exhaust inlet pipe 81 of the exhaust gas purifying device 50 is connected to the exhaust manifold 83 of the diesel engine 20 through the turbine case 106 of the turbocharger 105 and is connected to the exhaust inlet pipe 81 And the exhaust manifold 83 are communicated with each other. A tail pipe 84 is extended between the threshing device 5 and the grain tank 7 and the exhaust pipe 82 is communicated with the tail pipe 84. The exhaust gas discharged from the exhaust manifold 83 of the diesel engine 20 is discharged from the exhaust gas purifier 50 through the tail pipe 84 to the outside of the gas.

An exhaust gas purifier 50 is disposed so as to protrude from the lower side of the side column 15 toward the feeder house 31 and a partition plate (heat sink plate) 65 is provided below the side column 15. Then, the partition plate body 65 is disposed at a height position in the vicinity of the double structure portion of the engine room cover (44). Therefore, the wire or the harness on the side of the side column 15 can be easily protected by the partition plate member 65 serving as the heat shielding plate against the heating of the exhaust gas purifier 50 or the like. It is also possible to prevent exhaustion from the guide grooves or the like of the levers 12, 13, 14a and 14b opened on the operating plate member on the upper surface of the side column 15 toward the operator of the driver's seat 10b.

16 to 21, the exhaust outlet pipe 82 is bent toward the left and right center sides of the traveling base 1, and is also bent downward (the threshing device 5 and the grain tank 7) in the vicinity of the entrance). That is, the exhaust outlet pipe 82 has an S-shape in plan view. Therefore, the middle portion of the exhaust gas purifying device 50 and the exhaust outlet pipe 82 are adjacent to each other so as to extend in parallel with the axial direction of the output shaft 20a of the diesel engine 20 in plan view. The rear end side of the exhaust outlet pipe 82 and the front end side of the tail pipe 84 communicate with each other.

The exhaust outlet pipe 82 is supported on the left support leg body 113 for supporting the exhaust gas purifier 50 via the outlet pipe support bracket 115. The outlet pipe support bracket 115 is provided with a relay bracket 116 extending upward from the rear midway portion of the left support leg body 113 and an outlet bracket 116 extending from the upper end of the relay bracket 116 toward the inside of the engine room 43 And an extended connection bracket 117. The outlet tube support bracket 115 is connected to the bent portion of the exhaust outlet tube 82 at the upper edge of the connection bracket 117 and supports the exhaust outlet tube 82.

As shown in Figs. 5 to 15, the tail pipe 84 discharges the exhaust gas from the space between the threshing device 5 and the grain tank 7 to the rear upper side. The tail pipe 84 is bent so that the front end side is bent downward and the middle portion is extended upward and the rear end side is bent so as to extend rearward from the rear upper side of the traveling crawler 2. That is, the tail pipe 84 has a crank shape when viewed from the side. And the rear end side of the tail pipe 84 is opened obliquely downward in the rear direction. The rear end side of the tail pipe 84 extends rearward and obliquely to the left so as to face the rear end opening portion toward the threshing device 5 side. The inner diameter of the exhaust inlet on the front end side of the tail pipe 84 is made larger than the exhaust outlet diameter on the rear end side of the exhaust outlet pipe 82. And the exhaust port of the tail pipe 84 is loosely fitted into the exhaust port of the exhaust port 82. Therefore, outside air is sucked into the tail pipe 84 from the gap between the exhaust outlet of the exhaust outlet pipe 82 and the exhaust inlet of the tail pipe 84.

15 to 23, the tail pipe 84 is formed by a double tube formed of an inner tube 84a and an outer tube 84b, and the outer side of the inner tube 84a and the inner side of the outer tube 84b are made of a plurality of And the inner tube 84a is fixed to the inside of the outer tube 84b. The inner tube 84a protrudes from the outer tube 84b at the front end of the tail pipe 84 and the rear end of the exhaust outlet tube 82 is connected to the inner tube 84 of the tail pipe 84 84a (exhaust inlet). The inner pipe 84a extends to the middle portion of the outer pipe 84b along the exhaust gas moving direction. Thereby the exhaust gas is introduced into the tail pipe 84 from the exhaust outlet pipe 82 and the outside air is introduced from the gap between the exhaust pipe 82 and the tail pipe 84, ) Is cooled by the outside air.

The tail pipe 84 is supported on the left support frame 71 via the tail pipe support bracket 118. The tail pipe support bracket 118 is connected to each of the inner pipe 84a and the outer pipe 84b of the tail pipe 84 and is connected to the intake and exhaust path support frame 122 branched from the left support frame 71 The tail pipe 84 is supported on the left support frame 71. [ The intake and exhaust passage support frame 122 is located on the left rear side of the left support frame 71 and extends upward in the middle of the left support frame 71 so as to be parallel with the left support frame 71.

The tail pipe support bracket 118 includes a connecting plate 119 extending vertically and a connecting pipe 120 extending forward from the lower end of the connecting plate 119 And is formed in an L-shaped configuration. The middle portion of the outer tube 84b of the tail pipe 84 is welded and fixed to the upper end of the connecting plate 119 and the middle portion of the connecting plate 119 is welded to the intake and exhaust path support frame 122 via the relay plate 121. [ Lt; / RTI > And the front end of the inner pipe 84a is welded and fixed to the front end of the connecting pipe 120. [ The front end of each of the inner pipe 84a and the outer pipe 84b of the tail pipe 84 is connected via a plurality of spacers 84c and one of the spacers 84c is connected to the connecting pipe 120, And the tube 84a is fixed to the tail pipe support bracket 118. [

The tail pipe 84 is fixed to the support frame 71 via the tail pipe support bracket 118 while the exhaust outlet pipe 82 is fixed to the engine 20 via the outlet pipe support bracket 115 . That is, the exhaust outlet pipe 82 and the tail pipe 84, which are separated and connected to each other, are supported on the engine 20 and the traveling vehicle 1, which are the same vibration system as the exhaust outlet pipe 82 and the tail pipe 84, . Therefore, the exhaust outlet pipe 82 and the tail pipe 84 are not affected by other vibration systems, so that breakage or failure can be prevented. In addition, since the tail pipe 84 can be separated from the vibration system of the diesel engine 20, the tail pipe 84 can be damaged due to the difference in vibration frequency between the diesel engine 20 side and the traveling vehicle 1 side The concern can be suppressed significantly.

The tail pipe 84 can be fixed in the engine compartment 43 to extend the exhaust inlet so that the exhaust gas discharged from the exhaust outlet pipe 82 can be exhausted It can be sufficiently cooled by the tail pipe 84 and exhausted to the outside. The inner tube 84a and the outer tube 84b are fixed to each other by the tail pipe support bracket 118 so that the relative position of the inner tube 84a with respect to the outer tube 84b can be maintained and supported.

Further, since the inner pipe 84a and the outer pipe 84b are distributed and fixed at both end positions of the tail pipe support bracket 118, the double pipe structure of the tail pipe 84 can be supported with high rigidity. The outer tube 84b is connected to the connecting plate 119 at a position facing the exhaust outlet portion of the inner tube 84a so that the exhaust outlet portion of the inner tube 84a is connected to the connecting plate 119 via the spacer 84c, . Both ends of the inner tube 84a extending to the middle portion in the outer tube 84b are supported by the tail pipe supporting bracket 118 so that the inner tube 84a and the outer tube 84b can be supported by the cross- As shown in Fig.

The tail pipe support bracket 118 is fixed to the back surface side of the intake and exhaust passage support frame 122 via the relay plate 121. [ The connecting plate 119 of the tail pipe support bracket 118 is formed with upper and lower length adjustment holes and the tail pipe support bracket 118 is vertically and vertically attached to the relay plate 121 Bolts are fastened. The relay plate 121 is vertically and horizontally aligned with an adjusting hole and the relay plate 121 is bolted to the intake and exhaust path support frame 122 so that the left and right attachment positions can be adjusted. Therefore, by adjusting the fastening position of the tail pipe support bracket 118 and the relay plate 121, the support position of the tail pipe 84 can be easily adjusted, and machining error and mounting error can be absorbed. Further, it is also possible to form adjustment holes in the left and right lengths on the connecting plate 119, and to form adjusting holes in the upper and lower lengths in the relay plate 121.

The air cleaner 49 is in communication with the pre-cleaner 85 serving as a fresh air introduction portion for receiving air from the outside air. The pre-cleaner 85 is disposed between the threshing device 5 and the grain tank 7 like the tail pipe 84 and extends above the threshing device 5 and the grain tank 7. The pre-cleaner 85 is fixed to the front surface of the grain conveyor 60 via the pre-cleaner support bracket 126 and is disposed in front of the grain conveyor 60. The lower end (intake outlet) of the pre-cleaner 85 is connected to the upper end (intake inlet) of the intake pipe 87 made of a metal pipe (iron pipe) via the bellows pipe 86.

The intake pipe 87 extends vertically from the right side (the side of the operation unit 10) of the tail pipe 84 and is connected to a pre-cleaner 85 disposed above the threshing unit 5, And is connected via a bellows pipe 86. That is, the intake path of the diesel engine 20 is disposed closer to the driver's seat 10b than the exhaust path, and the intake tubes 87 of the intake path near the exhaust path are formed of metal tubes. The intake pipe 87 is disposed behind the side of the manipulator case 17 at the rear of the side column 15 and is supported by the left support frame 71 together with the tail pipe 84. [ That is, the manipulator case 17 is disposed at a position rearward of the side column 15 and forward of the tail pipe 84 and the intake pipe 87.

The operating mouth case 17 and the suction pipe 87 are arranged in an elongated manner between the driving seat 10b and the tail pipe 84. [ Therefore, the operation tool case 17 and the intake tube 87 can function as a heat shielding member for shielding exhaust heat from the tail pipe 84 behind the driver's seat 10b. Therefore, it is possible to prevent the heat from the tail pipe 84 from being transmitted to the operator climbing the driver's seat 10b. In addition, since the intake pipe 87 is formed of a metal pipe, deformation due to heat from the tail pipe 84 is suppressed, and the rigidity of the intake path can be ensured.

The intake tube 87 is fixed to the left trunk frame 71 via the intake tube supporting bracket 123 and is disposed at a substantially same height as the tail pipe 84. [ The upper end (intake inlet) of the intake pipe 87 is located at the same height as the front end (exhaust inlet) of the tail pipe 84 and the lower end (The exhaust outlet) of the exhaust gas recirculation passage. The installation area of the intake pipe 87 in the up-and-down direction may be wider than the installation area of the tail pipe 84. [

The intake tube support bracket 123 is connected to the intake pipe 87 and is connected to the intake and exhaust passage support frame 122 branched from the left support frame 71 so that the intake pipe 87 is connected to the left support frame 71 . The intake tube support bracket 123 is welded and fixed to the outer circumferential surface of the intake pipe 87 and bolt holes are formed in the rear surface thereof and bolted to the relay plate 124 fixed to the intake and exhaust passage support frame 122 . The relay plate 124 is welded and fixed to the upper end of the intake and exhaust passage support frame 122 and the connection portion with the intake pipe support bracket 123 is extended forward of the intake and exhaust passage support frame 122. Thus, the intake tube support bracket 123 is fixed to the intake and exhaust passage support frame 122 in front of the tail pipe support bracket 118.

The relay plate 124 is formed in a crank shape in plan view and has a connecting portion to the intake tube supporting bracket 123 at the front side and a relay plate 121 connected to the tail pipe supporting bracket 118 at the rear side As shown in Fig. That is, the intake pipe support bracket 123 and the tail pipe support bracket 118 can be fixed before and after the relay plate 124 by configuring the relay plate 124 in a crank shape in plan view. The connection portion of the relay plate 124 with the intake tube supporting bracket 123 is extended to the left side of the intake and exhaust passage support frame 122 and is connected to one end of the right side surface of the threshing device 5 And is connected to the other end of the front support frame 127. One end of the relay plate 124 is connected to the rear side of the right side of the threshing device 5 and connected to the other end of the rear support frame 128 extending in the front and rear direction.

 The supporting structure can be simplified by intensively supporting the intake pipe 87 and the tail pipe 84 in the intake and exhaust passage supporting frame 122 and the assembling property and the maintenance property of the intake and exhaust passages of the engine 20 can be improved . Since the relative position between the tail pipe support bracket 118 and the intake pipe support bracket 123 can be fixed by the relay plate 124, a proper gap can be formed in the intake path and the exhaust path, It is possible to easily mitigate mutual thermal influence in the intake and exhaust device. The intermediate plate 124 connected to the intake tube support bracket 123 and the tail pipe support bracket 118 is supported by the front and rear support frames 127 and 128 connected to the front and rear sides of the threshing device 5, As shown in Fig. Therefore, the stiffness of the intake and exhaust passage support frame 122 is ensured by the threshing device 5, and the intake and exhaust passage of the engine 20 can be supported with high rigidity.

An attenuator 88 for attenuating the intake air from the pre-cleaner 85 is interposed between the air cleaner 49 and the intake pipe 87 in the intake path of the engine 20. [ The damper 88 is disposed below the intake pipe 87 and communicates with the lower end (exhaust outlet) of the intake pipe 87 via the upstream intake pipe 89. The upstream-side intake-air relay pipe 89 has a U-shape in plan view, and is connected to the intake port on the left side of the damper 88 located forward of the intake pipe 87.

16 to 22, the damper 88 is cantilever-supported by an attenuator supporting bracket 129 connected to the left supporting frame 71 below the intake tube supporting bracket 123, and the exhaust gas purifying device Rear side of the engine 50 and at a position between the EGR device 96 and the tail pipe 84 of the engine 20 when viewed from the side. The upstream-side intake-air relay pipe 89 is bent around the lower portion of the tail pipe 84 and connected to the attenuator 88.

The damper 88 is disposed on the lower left side of the air cleaner 49 and the intake outlet of the damper 88 communicates with the intake inlet of the air cleaner 49 by the downstream intake manifold 90. The intake relay pipe 90 is located on the lower side of the air cleaner 49 and on the right side of the attenuator 88. The intake air relay pipe 90 is formed in an L shape when viewed from the front and connects the exhaust inlet side with the right side surface of the attenuator 88, And the outlet side is connected to the lower surface of the air cleaner 49.

An outlet pipe support bracket 115 for supporting the exhaust outlet pipe 82 is disposed between the exhaust gas purifier 50 and the damper 88. The connecting bracket 117 of the outlet tube supporting bracket 115 is disposed at the same height position as the attenuator 88 and the front surface of the damper 88 is covered by the connecting bracket 117 of the outlet tube supporting bracket 115 . This makes it difficult for the attenuator 88 to receive the radiated heat from the exhaust gas purifying device 50. Since the connection bracket 117 of the outlet tube support bracket 115 is configured to be wide in the left and right direction (same direction as the output shaft 20a of the engine 20) as the back plate 65c of the partition plate body 65 , The cooling air passing through the engine room (43) can be guided to the feeder house (31) side of the cutting device (3) to suppress the stagnation of the cooling air in the engine room (43).

The air cleaner 49 and the damper 88 are disposed in the engine room 43 in the left and right directions when viewed from the plane while the intake tube 87 and the damper 88 are disposed in the forward and rearward directions as viewed in plan. Therefore, the components of the intake path of the engine 20 can be arranged efficiently and compactly, so that the intake path can be shortened. An air cleaner 49 and an attenuator 88 are disposed adjacent to the left and right sides of the exhaust gas purifying device 50 in the engine room 43 with the exhaust outlet pipe 82 therebetween. Therefore, the components constituting the intake path of the engine 20 in the engine room 43 are prevented from being affected by the thermal influence from the exhaust gas purifier 50, which is a high-temperature heating element, The arrangement efficiency of each component can be improved.

24 to 26, the cab 10x incorporating the driver's seat 10b is used as the operation section 10 as the cabin 10x, The present invention is also applicable to a combined combine mounted. The combine shown in Figs. 24 to 26 constitutes the engine room 43 below the cabin 10x and the exhaust gas purifying device 50 in the engine room 43 can be visually confirmed from the upper surface side of the feeder house 31 . The intake path and the exhaust path of the engine 20 are disposed behind the cabin 10x and the tail pipe 84 and the intake pipe 87 are provided in the engine frame that supports the cabin 10x It is supported intensively.

In addition, the constitution of each part in the present invention is not limited to the embodiment of the present invention, and various changes can be made without departing from the gist of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a combine according to the present invention will be described with reference to the drawings. In the following description, the left side toward the advancing direction of the traveling base 1 is referred to as the left side, and the right side toward the advancing direction is referred to as the right side only. The combine of the embodiment will be described with reference to Figs. As shown in Figs. 1 to 4, includes a traveling base 1 supported by a pair of left and right traveling crawlers 2 (traveling units). A cutting unit 3 for cutting and collecting the curved portions is mounted on the front side of the running vehicle 1 by means of a single acting type hydraulic cylinder 4 so as to be adjustable around the cutting pivot point shaft 4a. The traveling base 1 is provided with a tumbling device 5 having a tilting 51 and a graining tank 7 for storing curved grains after the tumbling is arranged in a transverse arrangement. The threshing device 5 is disposed on the left side in the advancing direction of the traveling base 1 and the grain tank 7 is disposed on the right side in the advancing direction of the traveling base 1 (see Fig. 3).

1: Running vehicle 3: Cutting device
5: Threshing device 7: Grain tank
15: side column 16: lever switch
17: Operation tool case 18:
20: Diesel engine 31: Feeder house
43: engine room 44: engine room cover
49: Air cleaner 50: Exhaust gas purifying case
65: partition plate (heat plate) 65a: cavity
65b: bottom plate 65c: rear plate
66: Column supporting beam frame 82: Exhaust outlet pipe
84: tail pipe 84a: inner tube
84b: outer tube 84c: spacer
85: Pre-cleaner 86: Bellows tube
87: intake tube 88: attenuator
113, 114: Support leg body 115: Outlet tube support bracket
116: Relay bracket 117: Connection bracket
118: tail pipe support bracket 119: connection plate
120: connection pipe 121: relay plate
122: intake / exhaust passage supporting frame 123: intake pipe supporting bracket
124: Relay plate 125: Auger stand
126: pre-cleaner support bracket 127: front support frame
128: Rear support frame 129: Attenuator support bracket

Claims (6)

A traveling machine for loading and unloading the cutting device and the threshing device; and a traveling device for traveling the engine room on the traveling airframe. And an operation section disposed above the engine room,
Wherein the engine is provided with an exhaust gas purifying device for purifying the exhaust gas, the exhaust gas purifying device including a feeder house in which the cutting device is in communication with a feed opening in the front portion of the threshing device,
Wherein a driving operation portion provided in the operating portion is disposed adjacent to the feeder house and a cavity portion communicating from the engine room toward the feeder house is provided below the driving operation portion, Is opened in the second direction. The method according to claim 1,
Wherein the operating portion has an L-shaped partition plate as viewed from a side covering an upper portion and a front portion of the cavity portion, and a link mechanism connected to the operation portion in a space above and in front of the partition plate, Respectively,
Wherein the partitioning plate is protruded toward the feeder house side, and a heat insulating material is attached to the surface of the cavity covering the cavity. 3. The method of claim 2,
Wherein an exhaust gas inlet side of the exhaust gas purifying device is disposed so as to project from the operation control portion toward the feeder house side, wherein a front surface and an upper surface of the exhaust gas purifying device are covered with the partitioning plate. The method according to claim 2 or 3,
Wherein the partition plate includes a bottom plate covering the upper portion of the cavity portion and a back plate covering the front of the cavity portion,
Wherein the bottom plate is installed so as to run downward toward the cutting device and to skew upward toward the rear side. 5. The method of claim 4,
An exhaust gas purifying device support bracket having one end connected to a cylinder head of the engine and supporting the exhaust gas purifying device; and an exhaust gas purifying device support bracket connected to the exhaust gas purifying device support bracket and extending upwardly, And an exhaust pipe support bracket for supporting the pipe,
And the exhaust pipe support bracket is disposed in parallel with the rear plate of the partition plate interposed between the exhaust gas purifier and the exhaust pipe support bracket. 6. The method of claim 5,
An air cleaner and an attenuator, which are supported by the engine room frame in the intake path of the engine,
Wherein the attenuator is disposed below the air cleaner and disposed behind the exhaust gas purifying device, and the exhaust pipe supporting bracket is disposed between the attenuator and the exhaust gas purifying device.

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